{"id":"https://openalex.org/G780210857","display_name":"Realization of spin transistor using organic single crystal semiconductor","description":"Practicing this research project has led to a great understanding of electron charge / spin transport in semiconductors. We have reported for the first time in the world that it is important to incorporate the effect of soft phonons into the standard theory of electron transport used in inorganic semiconductors. Furthermore, we conduct experimental research on spin transport by measuring field-effect characteristics at room temperature, measuring electronic properties in magnetic fields and at low temperatures, and electron spin resonance experiments, etc., and it was shown that the organic semiconductor can achieve both high mobility and long spin relaxation time of 1 millisecond or more. As a result of these achievements, we have obtained progress in physical property research more than originally planned, such as realization of very long spin relaxation time of organic semiconductor and metallic state of organic semiconductor at low temperature.","funder_award_id":"17H06200","funder":{"id":"https://openalex.org/F4320334764","display_name":"Japan Society for the Promotion of Science","doi":"10.13039/501100001691"},"funded_outputs":["https://openalex.org/W2741882410","https://openalex.org/W2793767167","https://openalex.org/W2796304468","https://openalex.org/W2797649233","https://openalex.org/W2836678538","https://openalex.org/W2986450424","https://openalex.org/W2987702347","https://openalex.org/W2995560400","https://openalex.org/W2995571433","https://openalex.org/W3001864573","https://openalex.org/W3005158996","https://openalex.org/W3011941367","https://openalex.org/W3045376317","https://openalex.org/W3088749707","https://openalex.org/W3093626196","https://openalex.org/W3095799359","https://openalex.org/W3105635708","https://openalex.org/W3108021411","https://openalex.org/W3114611431","https://openalex.org/W3130201628","https://openalex.org/W3130990068","https://openalex.org/W4213337505","https://openalex.org/W4410077258","https://openalex.org/W4410317493"],"funded_outputs_count":24,"parent_awards":[],"sub_awards":[],"sub_awards_count":0,"amount":25610000.0,"currency":"JPY","amount_usd":228775.98,"amount_usd_basis":"daily_rate","recipients":[],"recipient_countries":[],"recipient_regions":[],"research_scope":{"is_research":true,"basis":"funder_default","tier":1},"funding_type":"research","funder_scheme":"Grant-in-Aid for Challenging Research (Pioneering)","start_date":"2017-06-30","end_date":"2020-03-31","start_year":2017,"end_year":2020,"landing_page_url":"https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-17H06200/","doi":null,"provenance":"kaken","lead_investigator":{"given_name":"Junichi","family_name":"Takeya","orcid":null,"role_start":null,"affiliation":{"name":"The University of Tokyo","country":"Japan","ids":[{"id":"https://nrid.nii.ac.jp/nrid/1000020371289","type":"nrid","asserted_by":"kaken"}]},"author":{"id":"https://openalex.org/A5076826426","display_name":"Jun Takeya","orcid":"https://orcid.org/0000-0002-7003-1350"},"institutions":[{"id":"https://openalex.org/I74801974","display_name":"The University of Tokyo","ror":"https://ror.org/057zh3y96","country_code":"JP","type":"education","lineage":["https://openalex.org/I74801974"]}]},"co_lead_investigator":null,"investigators":null,"works_api_url":"https://api.openalex.org/works?filter=awards.id:G780210857","primary_topic":null,"topics":null,"institution_awarded":[{"id":"https://openalex.org/I74801974","display_name":"The University of Tokyo","ror":"https://ror.org/057zh3y96","country_code":"JP","type":"education","lineage":["https://openalex.org/I74801974"]}],"updated_date":"2026-11-11T03:01:08.000Z","created_date":"2026-07-13T04:17:19.000Z"}